Ok my questions are.

1) for the operation of the secondary butterflys on the plug one wire goes to the ecu and the other one goes to a 12v source or a ground?


2)I am using the vx harness. the vx harness has a 5 wire 02 plug (vx's have 5 wire 0s sensors). How do I convert to a 4 wire 02 sensor? what wiring changes for that are at the ecu end?


thanks
Derek

 

1. to a 12v source.

2. do some searching. There are a few very detailed threads in here.